^Williams, Alwyn; Brunton, C.H.C.; Carlson, S.J.; et al. (1997–2007). Kaesler, Roger L.; Selden, Paul (eds.). Part H, Brachiopoda (Revised).
Treatise on Invertebrate Paleontology. Boulder, Colorado; Lawrence, Kansas: Geological Society of America; University of Kansas.
^Emig C. C., Bitner M. A. & Álvarez F., 2019.
Linguliformea. Brachiopoda database. Accessed 2020-09-27.
^Williams, Alwyn; Brunton, C.H.C.; Carlson, S.J.; et al. (1997–2007). Kaesler, Roger L.; Selden, Paul (eds.). Part H, Brachiopoda (Revised).
Treatise on Invertebrate Paleontology. Boulder, Colorado; Lawrence, Kansas: Geological Society of America; University of Kansas.
^Emig C. C., Bitner M. A. & Álvarez F., 2019.
Linguliformea. Brachiopoda database. Accessed 2020-09-27.